import { formatRFC3339 } from "@wrkspc/src/formatRFC3339/index.ts";
import assert from "node:assert";

/**
 * America/St_Johns (Canada) is interesting for its negative to UTC time, with 30 minutes offset.
 * Bonus: It depends on Standard and Summer time.
 */
if (process.env.TZ !== "America/St_Johns")
  throw new Error(
    "The test must be run with TZ=America/St_Johns (UTC-02:30 or UTC-03:30)",
  );

if (parseInt(process.version.match(/^v(\d+)\./)?.[1] || "0") < 10)
  throw new Error("The test must be run on Node.js version >= 10");

// Old date
assert.strictEqual(
  formatRFC3339(new Date(1986, 3, 4, 10, 33, 1)),
  "1986-04-04T10:33:01-03:30",
);

// Standard time (Newfoundland and Labrador have -03:30)
assert.strictEqual(
  formatRFC3339(new Date(2020, 0, 23, 5, 0, 54)),
  "2020-01-23T05:00:54-03:30",
);

// Summer time (Newfoundland and Labrador have -02:30)
assert.strictEqual(
  formatRFC3339(new Date(2020, 6, 30, 20, 59, 1)),
  "2020-07-30T20:59:01-02:30",
);
